United flights from Lisbon to Sun Valley

Changed bag rules and optional services         Cruise Packages

Featured daily fares for flights from Lisbon (LIS) to Sun Valley (SUN)

Try alternate month or interact with individual days below in order to find offers.
Mar 2025
No result for this month
Mar 2025
From$ 442*
Viewed: 20 hours ago
RoundTrip|Economy
Mar 2025
From$ 447*
Viewed: 20 hours ago
RoundTrip|Economy
$ 199
$ 2.2K
Displaying fares for March-2025
24

Mo

MAR

25

Tu

26

We

27

Th

28

Fr

29

Sa

30

Su

31

Mo

01

Tu

APR

02

We

03

Th

04

Fr

05

Sa

06

Su

07

Mo

08

Tu

09

We

10

Th

11

Fr

12

Sa

13

Su

14

Mo

15

Tu

16

We

17

Th

18

Fr

19

Sa

20

Su

21

Mo

22

Tu

23

We

Range$ 199-$ 2,221

*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

Explore more United flights

Explore United Airlines's Top-Pick Destinations